Brush.



No. 756,243. 7 PATENTBD APR. 5, 1904 E. A. LAITNER.

BRUSH.

APPLICATION FILED MAY 12, 1903.

N0 MODEL.

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Patented April 5, 1904.

PATENT ()rrrcn.

EDWARD A. LAITNER, OFDETROIT, MICHIGAN.

BRUSH.

SPECIFICATION forming part of Letters Patent No. 756,243, dated April 5, 1904.

Application filed May 12. 1903.

To all whom it may concern:

' troit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Brushes, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to bolting cloth brushes; and the objects of my invention are to produce a brush that is cheaply and easily constructed, one that will slide on theflourscreen and assume various positions with reference to the bolting-cloth, and, above all, that is constructed without the use of glue or fastener of any kind that can possibly be affected by the heat. I attain these objects by the construction shown in the accompanying drawings, in which- Figure 1 is a view of the back of the brush. Fig. 2 is a side view. Fig. 3 is a section showing the method of fastening the bristles in the back, and Fig. 4: shows the brush in operative position with reference tothe boltingcloth and screen.

Similar reference characters refer to like parts throughout the different views.

In flour-bolts of the type where I expect to V I use my brush a screen A and bolting-cloth B are separated by a space wide enough to admit the brush 0. This brush is constructed with a back D, preferably of hard rubber, although woocl or any other desirable material may be used, into which'are fastened the bristle E by means of the wire F. These bristles are arranged in tufts, and preferably four pairs are used. The wire lies in grooves a in the back, as shown. Integral with the back are the projections Gr, preferably three in number, which serve as feet to support the brush on the screen. I

Considerable heat is present in a flour-bolt, which serves to evaporate any moisture that may be set free upon the crushing of the wheat. This heat is generated by the rolls in crushing and is sufficient to melt glue or any paste used about the bolting-machine. It has a tendency to cause the flour to stick to the bolting-cloth, more particularly between the threads in the meshes of the fabric. The reciprocatory movement of the bolting-cloth Serial No. 156,735. (No model.)

causes the flour lying on it to slide back and forth to some extent, and thus keep the top of the cloth fairly free from adhering particles; but no such safeguard is present for the bottom of the cloth. A reciprocating screen A is therefore provided, and on this screen are necessarily subjected, the projections G must be integral with the back, for if glued on the glue will melt and if nailed or screwed the openings will become enlarged and release the'fastening. The holes to receive the bristles are preferably tapering, and the retainingwire is beneath the surface of the back to avoid any possibility of wear or catching under the wires of the screen.

Having now explained my construction, what I claim as my invention, and desireto secure by Letters Patent, is

A brush for bolting-machines comprising a back, a plurality of rounded projections on the upper face thereof, said face being provided with a circuitous groove therein opening to a series of separated upwardly-tapering bristle receiving apertures extending through said back, bunches of bristles in said apertures, and a retaining-wire following the course of the groove in the back and seated in said groove below the plane of the upper face of said back, intermediate portions of said wire depending into the bristle-receiving apertures-and through the tuftstherein whereby said tufts are forcibly drawn into engagement with the walls of their tapering apertures and-held in said apertures.

In testimony whereof I aflix my signature in presence of two witnesses.

EDWARD A. LAITNER. Witnesses:

H. C. SMITH,

J AS. P. BARRY. 

